WO2011071868A1 - Mechanical pushbutton locking arrangements - Google Patents
Mechanical pushbutton locking arrangements Download PDFInfo
- Publication number
- WO2011071868A1 WO2011071868A1 PCT/US2010/059217 US2010059217W WO2011071868A1 WO 2011071868 A1 WO2011071868 A1 WO 2011071868A1 US 2010059217 W US2010059217 W US 2010059217W WO 2011071868 A1 WO2011071868 A1 WO 2011071868A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lock
- button
- latch
- housing
- lock wheel
- Prior art date
Links
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/0068—Permutation or combination locks; Puzzle locks in padlocks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/16—Permutation or combination locks; Puzzle locks with two or more push or pull knobs, slides, or the like
- E05B37/166—Permutation or combination locks; Puzzle locks with two or more push or pull knobs, slides, or the like each knob being pushed a predetermined number of times
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/0048—Permutation or combination locks; Puzzle locks with changeable combination
- E05B37/0058—Permutation or combination locks; Puzzle locks with changeable combination by axial disengagement between hub and rim of tumbler discs or rings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/08—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted for adjusting the discs
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0075—Locks or fastenings for special use for safes, strongrooms, vaults, fire-resisting cabinets or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7158—Individual blocking elements
- Y10T70/7164—Selectively operable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7181—Tumbler type
- Y10T70/7198—Single tumbler set
- Y10T70/7215—Individually set sliding tumblers
- Y10T70/722—Manually operable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7181—Tumbler type
- Y10T70/7198—Single tumbler set
- Y10T70/7237—Rotary or swinging tumblers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7181—Tumbler type
- Y10T70/7198—Single tumbler set
- Y10T70/7237—Rotary or swinging tumblers
- Y10T70/726—Individually set
- Y10T70/7271—Associated movable operator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7181—Tumbler type
- Y10T70/7198—Single tumbler set
- Y10T70/7237—Rotary or swinging tumblers
- Y10T70/726—Individually set
- Y10T70/7271—Associated movable operator
- Y10T70/7288—Spindle operator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7316—Combination upsetting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/7322—Permutation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/735—Operating elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7153—Combination
- Y10T70/735—Operating elements
- Y10T70/7407—Operating indicators
Definitions
- Lockable enclosures are used in many indoor and outdoor environments to restrict access to various items by providing the enclosure with a lockable door, lid, drawer, or other such barrier.
- the barrier can include a locking mechanism, such as, for example, a combination lock, padlock, set of pushbuttons, or key operated latch, to limit access to the contents of the enclosure to one or more authorized users.
- Some applications may require secure storage of one or more smaller items, such as keys, credit cards, or documents, for which restricted access by a limited number of authorized individuals is desirable.
- a key safe which is affixed to an entry door (e.g., shackled around the doorknob) of a building for secure retention of an authorized key for the entry door.
- the key safe may employ, for example, a pushbutton or combination dial locking mechanism, such that authorized users informed of the unlocking combination may open the key safe to access the door key for entry into the building.
- Mechanical pushbutton combination locks have been provided, for example, to allow for a pushbutton locking arrangement without requiring an electrical power source to maintain accessibility to the locking mechanism (i.e., without risk associated with power outages or battery depletion).
- Conventional mechanical pushbutton combination locks employ a series of buttons each operable between two different states or conditions- a depressed or selected condition and a non-pressed or unselected condition. When the correct buttons (and only the correct buttons) have been depressed, a lock member associated with the locking arrangement becomes movable from the locked condition to the unlocked condition. When at least one of the incorrect buttons has been depressed or when at least one of the correct buttons has not been depressed, the lock member remains blocked from movement to the unlocked condition.
- the number of potential combination codes is limited by the fact that the combination codes are not sequence-dependent, and that each button has only two states— a selected condition and a non-selected condition.
- the present application describes mechanical locking arrangements that are operable by pushbutton entry of a combination code using a set of pushbuttons or a keypad.
- a locking arrangement may be configured to utilize authorized combination codes requiring multiple pressings of one or more buttons, thereby increasing the number of possible combination codes for increased security.
- a lock in an exemplary embodiment of the present application, includes a housing, a keypad disposed on the housing, and a latch assembled with the housing.
- the keypad includes a plurality of button assemblies, each including an axially depressible button member including a camming surface, a lock wheel having a plurality of camming teeth, and a latch releasing feature secured to the lock wheel for rotation therewith. Pressing the button member causes the camming surface to engage one of the plurality of camming teeth, thereby incrementally rotating the lock wheel between a plurality of rotational positions.
- the latch releasing features of each of the plurality of button assemblies align with a plurality of blocking features of the latch to permit lateral sliding movement of the latch from a locked condition to an unlocked condition.
- Figure 1 is a front perspective view of s mechanical pushbutton locking arrangement
- Figure 2 is an exploded perspective view of the locking arrangement of Figure i ;
- Figure 3 is a perspective view of a pushbutton assembly of the locking arrangement of Figure 1;
- Figure 4 is another perspective view of the pushbutton assembly of Figure 3, shown without the leaf spring and torsion spring;
- Figure 5 is a perspective view of the button guide plate of the locking arrangement of Figure 1;
- Figure 6 is a perspective view of the lock wheel guide block of the locking arrangement of Figure 1;
- Figure 7 is a partial cross-sectional view of the button guide plate and housing member of the locking arrangement of Figure 1;
- Figure 8 is a perspective view of the reset plate of the locking arrangement of Figure 1;
- Figure 9 is a perspective view of the latch plate, reset plate, and pushbutton subassemblies of the locking arrangement of Figure 1;
- Figure 1 OA is a partial rear perspective view of the button guide plate, lock wheel guide block, and pushbutton subassemblies of the locking arrangement, of Figure 1, showing the lock wheels in a rotated position;
- Figure 10B is a partial rear perspective view of the button guide plate, lock wheel guide block, and pushbutton subassemblies of the locking arrangement of Figure 1, showing the lock wheels in a zero or reset position;
- Figure 11 is a side cross-sectional view of the locking arrangement of Figure 1, shown with the housing removed;
- Figure 12 is a perspective view of the latch plate of the locking arrangement of Figure 1;
- Figure 13 is a rear perspective view of the locking arrangement of Figure 1, with the housing, rear wall, and combination change plate removed;
- Figure 14A is a rear view of the locking arrangement of Figure 1, with the housing, rear wall, and combination change plate removed, shown in a locked condition;
- Figure 14B is a rear view of the locking arrangement of Figure 1, with the housing, rear wall, and combination change plate removed, shown in an unlocked condition;
- Figure 15 is an exploded perspective view of a lock wheel, drive stem, and combination selection member subassembly of the locking arrangement of Figure 1;
- Figure 16 is a perspective view of the combination change plate of the locking arrangement of Figure 1;
- Figure 17 is a rear perspective view of the locking arrangement of Figure 1, shownwith the housing removed;
- Figure 18 is a rear view of the locking arrangement of Figure 1;
- Figure 19A is a partial cross-sectional view of the locking arrangement of Figure 1, shown with the combination change plate in a normal position;
- Figure 19B is a partial cross-sectional view of the locking arrangement of Figure 1, shown with the combination change plate in a code change position;
- Figure 20 illustrates an exploded perspective view of a safe with a mechanical pushbutton locking arrangement
- Figure 21 illustrates a rear perspective view of the door assembly of the safe of Figure 20.
- the present application contemplates a mechanical pushbutton locking arrangement in which a locking member is changed from a locked or inoperable condition to an unlocked or operable condition by pressing one or more of a plurality of buttons disposed on a keypad of the locking arrangement, in accordance with an authorized combination code.
- a locking arrangement may be adapted to allow for an authorized combination code that requires at least one of the one or more buttons to be depressed multiple times during entry of the combination code. While any number of multiple pressings or selections of a button may be permitted, in one embodiment, each button may be depressed up to four times.
- buttons having a keypad with ten buttons, with each button being operable to one of five different conditions (non-pressed and depressed one, two, three, or four times), would allow for 5 10 or 9,765,625 different combination codes.
- a ten button keypad locking arrangement with buttons operable between two conditions (depressed and non- pressed) would allow for 2 10 or 1,024 different combination codes.
- allowing for multiple pressings of one or more of the buttons would enable a user to set the authorized combination code to correspond to a number having significance to the user (for example, a date, address or phone number) or an easy-to-remember word to facilitate memorization of the combination code.
- each of a plurality of buttons may be configured to incrementally rotate a corresponding lock wheel each time the button is depressed.
- a notch (or other unlocking feature) associated with each lock wheel is rotated into alignment with a corresponding tab (or other unlocking feature) associated with a latch mechanism, the latch mechanism is slideable from a securing position to a releasing position.
- the positions of incrementally rotatable lock wheels associated with buttons of a pushbutton locking arrangement may be reset to their non-pressed orientations, for example, to clear a
- the lock wheels may each be rotationally biased to their non-pressed orientation (e.g., by corresponding torsion springs).
- a lock wheel ratcheting mechanism is disengaged from each of the lock wheels (e.g., by user manipulation of a reset lever or button), the lock wheels rotate back to their non-pressed orientations.
- the unlocking orientations of incrementally rotatable lock wheels associated with buttons of a pushbutton locking arrangement may be selected or changed by a user, for example, to provide for an . authorized combination code that is more easily memorized by the user.
- combination selection members including latch-engaging unlocking features e.g., notches
- latch-engaging unlocking features may be rotationally fixed and disengaged from the corresponding lock wheels (e.g., by user manipulation of a code change lever or button) when each of the lock wheels has been rotated to the unlocking orientation.
- the lock wheels may be rotated to new unlocking orientations (e.g., by pressing the corresponding buttons) before re-engaging the combination selection members with the lock wheels.
- FIGS 1-19B illustrate various views of an exemplary pushbutton locking arrangement 100 including inventive features of the present application.
- the loclcing arrangement 100 includes a housing member 110 defining a keypad portion 111 on which a plurality of buttons members 122 is disposed.
- the housing is configured to function as a door to a key safe or other small safe enclosure, for example, by hingedly securing or otherwise attaching the door housing 110 to a safe enclosure (as shown, for example, in the embodiment of Figures 20 and 21).
- a latch member 133 extends from a slot in the housing 110 and is securable in a locked condition when the authorized combination code has not been entered.
- the latch member 133 Upon entry of the authorized combination code (i.e., by pressing the button member(s) 122 corresponding to the combination code), the latch member 133 becomes movable from a securing or locked position to a releasing or unlocked position, for example, by user manipulation of a latch release button 132 associated with the latch member 133. While the illustrated arrangement is configured to be provided as a lockable door to a key safe or other small locking enclosure, a similar locking arrangement may be provided for an entry door, gate, padlock or other lockable structure.
- buttons 122 labeled (by markings on the housing proximate the buttons) 1 through 4, it is to be understood that any number of buttons may be used, and that any one or more types of labeling or designations may be used to identify the buttons, including, for example, numbers, letters, colors, and images.
- each button may include a lock wheel engaging camming surface that engages one of a plurality of camming teeth on the corresponding lock wheel to incrementally rotate the lock wheel when the corresponding button is depressed.
- the lock wheels may be provided with a number of camming teeth corresponding to the number of times that the corresponding button may be depressed during entry of a combination code.
- each button member 122 is provided in a pushbutton or button assembly 120, in which the button member 122 assembled with a corresponding lock wheel 152 axially aligned with the button member 122.
- the buttons 122 are seated in a button guide plate 125 (see also Figure 5) assembled with the housing member 110 as part of the housing, and the lock wheels 152 are retained in a lock wheel guide block 155 (see also Figure 6) adjacent to the button guide plate 125.
- the button member 122 is depressed, camming surfaces 123 on the button member 122 are axially driven against rotationally aligned teeth 153 on the lock wheel 152.
- Each leaf spring 154 is disposed in a corresponding cavity 156 in the lock wheel guide block 155 ( Figures 6, 10A, and 10B).
- the leaf spring 154 permits forward (clockwise in the view of Figures 10A and 10B) incremental rotation of the lock wheel 152 in response to pressing the corresponding button member 122, while blocking backward (counterclockwise in the view of Figures 10A and 10B) rotation of the lock wheel 152.
- the locking mechanism may be configured to align the camming surface 123 of the released button member 122 with the next camming tooth 153. While many different configurations may be utilized to reorient the camming surface 123 with respect to the camming teeth 153, in one embodiment, the button member 122 is configure to rotate upon release for alignment with the next camming tooth 153. In the illustrated embodiment, axial movement of the buttons 122 is guided by the button guide plate 125 and the housing member 110.
- Each button member 122 includes a peripheral projection or post 126 that rides in a ramped slot 127a, 127b (see Figure 7) defined by the button guide plate 125 and housing member 110.
- the ramped slot 127a, 127b is angled to rotate the camming surface 123 of the button member 122 into alignment with the next camming tooth 153 of the lock wheel 152, such that a subsequent pressing of the button member 122 will rotate the lock wheel 152 an additional increment.
- the pushbutton assembly 120 may further be configured to limit the number of times a button member 122 may be depressed when entering a combination code.
- each button member 122 may be depressed up to four times to
- a notch 158 ( Figure 4) may be positioned adjacent to the fourth camming tooth 153, in a location substantially rotationally aligned with the leading edge 123 a of the button camming surface
- the notch 158 may be shaped to receive the leading edge 123 a of the camming surface 123 without further rotating the lock wheel 152, thereby providing the user with a "positive stop" indication that the button member 122 has reached its maximum number of pressings.
- the lock wheels 152 may be reset or returned to an initial or "zero" position for reentry of the combination code. While many different configurations may be utilized for resetting the buttons 122, in one embodiment, the lock wheels 152 may be rotationally biased toward the zero position, with a ratcheting mechanism (e.g., the leaf spring 154) securing the incrementally rotated lock wheels against spring biased movement toward the zero position. In such an embodiment, a reset mechanism may be configured to disengage the ratcheting mechanism from each of the locking wheels, thereby allowing the locking wheels to rotate back to the zero position.
- a ratcheting mechanism e.g., the leaf spring 15
- a reset plate 160 ( Figures 8 and 9) is disposed within the housing 110 adjacent the lock wheel guide block 155.
- tabs 161 extending from the reset plate 160 force the leaf springs 154 out of engagement with the peripheral gear teeth 151 of the lock wheels 152, allowing the lock wheels ( 152 to be rotationally biased back to the zero positions by torsion springs 159.
- each lock wheel 152 includes a radially outward extending protrusion 141 that abuts a corresponding tab 142 in the lock wheel guide block 155 upon rotation of the lock wheel 152 by the torsion spring 159, thereby establishing the zero position.
- a second protrusion 143 on the lock wheel 152 provides a surface for interlocking engagement with the leaf spring 159 when the reset plate is returned to the normal position.
- Each torsion spring 159 has a first end 159a secured to the lock wheel guide block 155 and a second end 159b ( Figure 2) secured to the lock wheel 152.
- a reset button 162 extending through the front of the housing 110 may be pressed to engage a camming end 163 of the reset button 162 with an upper edge 167 of the reset plate 160, thereby sliding the plate 160 such that the tabs 161 disengage the leaf springs 154 from the corresponding lock wheels 152.
- the reset button 162 is spring biased (by spring 164) to return the reset button 162 to the non-pressed condition, and the reset plate 160 is spring biased (by spring 166) to return the reset plate 160 to the normal position when the reset button 162 is released.
- the latch member 133 is associated with (e.g., integral with or affixed to) a latch plate 130 (see Figures 12 and 13) slideably disposed within the housing 110.
- the latch plate 130 may be blocked from sliding lateral movement when the authorized combination code has not been entered ( Figure 14A), and permitted to slide (i.e., for movement of the latch member) when the authorized combination code has been entered ( Figure 14B).
- a latch plate 130 integral with the latch member 133 includes cutout portions 131 through which the pushbutton assemblies 120 extend.
- outer peripheral notches 173 (or any other suitable latch releasing features) associated with each of the lock wheels 152 align with corresponding tabs or protrusions 137 (or any other suitable blocking features) in the latch plate 130.
- This arrangement allows the latch plate 130 to laterally slide against a biasing spring 134 to a release position, by user manipulation of the attached latch release button 132, thereby withdrawing or retracting the latch member 133 to disengage the latch member from a lockable structure (e.g., a safe enclosure, not shown).
- the outer peripheral notch 173 (or other unlocking feature) may be disposed on a component that is separable from, and rotationally adjustable with respect to, the lock wheel 152, for adjustment of the rotational position of the notch 173 with respect to the camming teeth 153 of the lock wheel 152, to allow for an unlocking position that corresponds to a different number of pressings (including zero) of the corresponding button member 122.
- a fastener connects each lock wheel to a
- a locking arrangement may be configured to require disassembly of the lock to adjust the orientation of the lock wheel with respect to the combination selection member.
- a user operable mechanism e.g., a lever or button
- a slideable combination change member may be moved to axially disengage the lock wheels from the combination selection members and to rotationally fix the combination selection members, such that the lock wheels may be rotated prior to re-engaging the lock wheels with the combination selection members.
- the lock wheels 152 are rotationally secured to corresponding combination selection members 172 by splined drive stems 180 having splined portions 187 that engage corresponding splined internal portions 157, 177 of the lock wheels 152 and combination selection members 172.
- the splined drive stems 180 are additionally secured to the lock wheels 152 by retaining pins 181 that are secured to the lock wheels 152 to slide within corresponding slots 183 in the drive stems 180, thereby permitting axial movement of the drive stems 180 with respect to the lock wheels 152 and combination selection members 172.
- a combination change plate 170 is disposed within the housing 110 and includes a user graspable actuation tab 171 accessible through the rear wall 115 of the housing 110 (Figure 18).
- Figures 19A and 19B when each of the combination selection members 172 is in the unlocking orientation, holding tabs 174 disposed on the combination change plate 170 align with corresponding recesses 176 in the combination selection members 172 to allow the combination change plate 170 to slide (i.e., by user movement of the actuation tab 171) against a biasing spring 179 ( Figure 17) to a code change position (Figure 19B).
- ramp surfaces 175 on the combination change plate 170 engage end portions 188 of the drive stems 180 to axially move the drive stems 180 to disengage the splined portions 187 of the drive stems 180 from the internal splined portions 177 of the combination selection members 172, while maintaining engagement with the internal splined portions 157 of the lock wheels 152. While the holding tabs 174 rotationally fix the combination selection members 172, the lock wheels 152 are free to rotate with respect to the combination selection members 172, by pressing the corresponding buttons 122.
- combination code is entered a first time for movement of the latch member 133 to move the housing 110 with respect to the interlocked structure (e.g., safe enclosure, not shown), thereby allowing access to the rear side 115 of the housing 110.
- the interlocked structure e.g., safe enclosure, not shown
- the current combination code is then reentered to return the lock wheels 152 to the unlocking orientations.
- Alignment of the recesses 176 in the combination selection members 172 with the holding tabs 174 of the code change plate 170 allow for movement of the actuation tab 171 to slide the code change plate 170 from the normal position to the code change position, which engages the holding tabs 174 with the recesses 176 and cams the drive stems 180 out of rotational engagement with the combination selection members 172.
- selected buttons 122 are depressed a selected number of times to generate a new authorized combination code, thereby rotating the lock wheels 152 to new corresponding unlocking orientations.
- a marked portion 178 or indicia of the combination selection dial 172 identifies the number of pressings of the corresponding button member 122 required to rotate the corresponding lock wheel 152 to the unlocking orientation.
- Figures 20 and 21 illustrate features of an exemplary key safe 200 including many of the inventive features of the locking arrangement 100 of Figures 1-19B.
- the key safe 200 includes a body 202, a shackle 204, a door assembly 206, and a button cover 208 pivotally connected to the body by a hinge pin 209.
- the door assembly includes a housing 210 defining a keypad portion 211 on which a plurality of button caps 229 are secured to a plurality of buttons 222.
- a spring 207 may be provided to bias the door assembly 206 toward the pivoted open position when unlocked.
- the door housing 210 is hingedly secured to the safe body 202 by hinge pins 203.
- Latch members 235 are assembled with a guide block 255 within the door housing 210 to extend from slots in the door housing 210 for secure engagement with notches in the safe body 202 when the locking arrangement is in a locked condition (i.e., when the authorized combination code has not been entered). Upon entry of the authorized
- a latch plate 230 within the door housing 210 becomes slideable to an unlocking position by user manipulation of a latch release button 232 associated with the latch plate 230.
- the latch release button 232 is laterally secured to the latch plate 230 for lateral sliding movement therewith. This lateral sliding movement causes pins 236 affixed to the latch plate 230 to ride in slots 238 in the latch members 235 to retract the latch members 235 from internal notches 212 in the body 202, allowing the door 206 to be pivoted to an open condition.
- buttons 222 labeled (by markings on the button caps 229) to resemble a telephone keypad it is to be understood that any number of buttons may be used, and that any one or more types of labeling or designations may be used to identify the buttons, including, for example, numbers, letters, colors, and images.
- each button 222 is provided in a pushbutton assembly 220, consistent with the pushbutton assembly 120 of Figure 3, to provide for one or more incremental rotations of a lock wheel 252 in response to pressing the corresponding button 222.
- the lock wheels 252 may be reset or returned to an initial or "zero" position for reentry of the combination code, by moving a reset plate 260 to force ratcheting leaf springs 254 out of engagement with peripheral gear teeth 251 of the lock wheels 252, allowing the lock wheels 252 to be rotationally biased back to the zero positions by torsion springs 259.
- the latch release button 232 is axially depressible to engage a camming end of the latch release button 232 with an upper edge 267 of the reset plate 260, thereby sliding the plate 260 such that the tabs 261 disengage the leaf springs 254 from the corresponding lock wheels 252.
- the reset button 262 is spring biased (by spring 264) to return the reset button 262 to the non- pressed condition, and the reset plate 260 is spring biased (by spring 266) to return the reset plate 260 to the normal position when the reset button 262 is released.
- the latch plate 230 may be blocked from sliding movement when the authorized combination code has not been entered, and permitted to slide (i.e., for movement of the latch members) when the authorized combination code has been entered.
- the latch plate 230 includes cutout portions 231 through which the pushbutton assemblies 220 extend.
- outer peripheral notches 273 associated with each of the lock wheels 252 align with corresponding tabs or protrusions 237 in the latch plate 230. This arrangement allows the latch plate 230 to slide against a biasing spring 234 to a release position, by user manipulation of the attached latch release button 232, thereby withdrawing or retracting the latch members 235 to disengage the latch members from the safe body 202.
- the combination change plate 270 and housing rear wall 215 may be provided with aligned hasp portions 289, 219 (see Figure 21).
- a lock e.g., a padlock
- the combination change plate 270 to the code change position is prevented, as the combination change plate hasp 289 is prevented from sliding into a notch 288 in the rear wall 215.
- windows or openings 217 in the rear wall 215 of the housing 210 are provided to align with a reference position on each of the combination selection members 272.
- a marked portion of the combination selection dial 272 identifies the number of pressings of the corresponding button 222 required to rotate the corresponding lock wheel 252 to the unlocking orientation.
- the safe body 202 is assembled with a U- shaped shackle 204 that may be secured to the body at both ends to affix the safe 200 to a doorknob, a hasp, or some other structure.
- the ends of the shackle are received through openings in the body 202 and through a shackle block 213 secured within the body 202 (e.g., by fasteners 218).
- a shackle latch 214 is spring biased (by spring 216) within the shackle block 213 to engage notches 205 in the shackle 204.
- the shackle latch 214 When the safe 200 is unlocked and the door 206 is pivoted open, the shackle latch 214 may be manually pressed (by engaging tab 217 of the shackle latch 214) against the spring 216 to release the shackle 204 for withdrawal of the shackle from the body 202.
- other mounting arrangements may be utilized, including, for example, mounting fasteners extending through the rear wall of the safe body (with fastener head accessible from inside the safe body).
- these various aspects, concepts and features may be used in many alternative embodiments, either individually or in various combinations and sub-combinations thereof. Unless expressly excluded herein all such combinations and sub-combinations are intended to be within the scope of the present inventions. Still further, while various alternative embodiments as to the various aspects, concepts and features of the inventions-such as alternative materials, structures, configurations, methods, circuits, devices and components, software, hardware, control logic, alternatives as to form, fit and function, and so on— may be described herein, such descriptions are not intended to be a complete or exhaustive list of available alternative embodiments, whether presently known or later developed.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10836511.5A EP2510170A4 (en) | 2009-12-07 | 2010-12-07 | Mechanical pushbutton locking arrangements |
CN201080063301.9A CN102834575B (en) | 2009-12-07 | 2010-12-07 | Machinery pushing button locking is arranged |
CA 2783197 CA2783197C (en) | 2009-12-07 | 2010-12-07 | Mechanical pushbutton locking arrangements |
JP2012543195A JP2013513047A (en) | 2009-12-07 | 2010-12-07 | Mechanical push button lock device |
MX2012006480A MX2012006480A (en) | 2009-12-07 | 2010-12-07 | Mechanical pushbutton locking arrangements. |
NZ60039810A NZ600398A (en) | 2009-12-07 | 2010-12-07 | A combination pushbutton lock, wherein pressing a button causes a camming surface to engage one of a plurality of camming teeth, thereby rotating a lock wheel about a central axis of the button |
AU2010328344A AU2010328344B2 (en) | 2009-12-07 | 2010-12-07 | Mechanical pushbutton locking arrangements |
ZA2012/04146A ZA201204146B (en) | 2009-12-07 | 2012-06-06 | Mechanical pushbutton locking arrangements |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26727609P | 2009-12-07 | 2009-12-07 | |
US61/267,276 | 2009-12-07 | ||
US32443410P | 2010-04-15 | 2010-04-15 | |
US61/324,434 | 2010-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011071868A1 true WO2011071868A1 (en) | 2011-06-16 |
Family
ID=44080650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/059217 WO2011071868A1 (en) | 2009-12-07 | 2010-12-07 | Mechanical pushbutton locking arrangements |
Country Status (10)
Country | Link |
---|---|
US (1) | US8555686B2 (en) |
EP (1) | EP2510170A4 (en) |
JP (1) | JP2013513047A (en) |
CN (1) | CN102834575B (en) |
AU (1) | AU2010328344B2 (en) |
CA (1) | CA2783197C (en) |
MX (1) | MX2012006480A (en) |
NZ (1) | NZ600398A (en) |
WO (1) | WO2011071868A1 (en) |
ZA (1) | ZA201204146B (en) |
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CN203924957U (en) * | 2013-06-26 | 2014-11-05 | 博乐士(香港)有限公司 | A kind of mechanical code lock |
CN103321488B (en) * | 2013-07-03 | 2015-04-01 | 上海交通大学 | Plain-secret dual-coded mechanical lock |
US9132945B1 (en) * | 2013-07-24 | 2015-09-15 | Brandon Ray Midboe | Push button lock |
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DK3404173T3 (en) | 2016-05-03 | 2020-05-25 | Supra Uk Ltd | A LOCKABLE SHIELD |
US10047542B2 (en) | 2016-05-03 | 2018-08-14 | Supra (Uk) Limited | Lock |
CN207211997U (en) * | 2016-07-13 | 2018-04-10 | 达文发展有限公司 | Locking device |
CN110067448A (en) * | 2018-01-24 | 2019-07-30 | 陈志洪 | The mechanical code lock of anti-violence and technical unlocking |
US20200048931A1 (en) * | 2018-08-10 | 2020-02-13 | Yao-Kun Yang | Combination lock |
US10890015B2 (en) | 2018-09-21 | 2021-01-12 | Knox Associates, Inc. | Electronic lock state detection systems and methods |
US10914098B2 (en) * | 2019-05-30 | 2021-02-09 | Digilock Asia Ltd. | Enclosure latch system |
CN110593651A (en) * | 2019-09-27 | 2019-12-20 | 赵金怀 | Special cipher disk for intelligent lock |
CN111119588B (en) * | 2020-01-11 | 2023-12-22 | 温州华意利五金装饰有限公司 | Multifunctional mechanical coded lock |
CN113636203B (en) * | 2020-04-27 | 2023-05-02 | 心心创意有限公司 | Cap with locking mechanism and container assembly including the same |
GB2613770A (en) | 2021-10-23 | 2023-06-21 | Supra Uk Ltd | A lock |
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- 2010-12-07 AU AU2010328344A patent/AU2010328344B2/en not_active Ceased
- 2010-12-07 EP EP10836511.5A patent/EP2510170A4/en not_active Withdrawn
- 2010-12-07 MX MX2012006480A patent/MX2012006480A/en not_active Application Discontinuation
- 2010-12-07 US US12/961,935 patent/US8555686B2/en not_active Expired - Fee Related
- 2010-12-07 CA CA 2783197 patent/CA2783197C/en not_active Expired - Fee Related
- 2010-12-07 NZ NZ60039810A patent/NZ600398A/en not_active IP Right Cessation
- 2010-12-07 WO PCT/US2010/059217 patent/WO2011071868A1/en active Application Filing
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2012
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Also Published As
Publication number | Publication date |
---|---|
EP2510170A1 (en) | 2012-10-17 |
CA2783197A1 (en) | 2011-06-16 |
US20110132049A1 (en) | 2011-06-09 |
US8555686B2 (en) | 2013-10-15 |
JP2013513047A (en) | 2013-04-18 |
CN102834575B (en) | 2015-08-12 |
AU2010328344B2 (en) | 2014-09-04 |
CA2783197C (en) | 2014-10-28 |
MX2012006480A (en) | 2012-07-03 |
AU2010328344A1 (en) | 2012-06-21 |
NZ600398A (en) | 2013-06-28 |
CN102834575A (en) | 2012-12-19 |
ZA201204146B (en) | 2013-02-27 |
EP2510170A4 (en) | 2017-11-29 |
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